Adding Support for Anchorage Digital

[zach-winters-anchor]

Hey Rainbow team 👋, we've had a few dApps reach out to us about getting our extension added to RainbowKit! I'd be happy to create the PR—our extension follows EIP-6963, so it should be pretty easy to add. Let me know if you all need any additional information, we'd be more than happy to connect!

Wallet Information

• Name: Anchorage Digital
• Website: https://www.anchorage.com/
• Extension: https://chromewebstore.google.com/detail/anchorage-digital/fadcgekaahkbmhjnpdhldednpbfpmkfl